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This review discusses the current understanding of androgen biosynthesis, mechanisms of action, and their roles in human biology, as well as related congenital and acquired disorders, but it reports no new research findings.

This review examines the epidemiology, pathogenesis, clinical manifestations, and diagnosis of female pattern hair loss and reports no new results.

This study suggests that canonical BMP signaling, particularly involving Smad1 and Smad5, plays a critical role in hair follicle stem cell regulation and hair morphogenesis, with distinct roles from pSmad8.

This study found that in vitro treatments with 5alpha-reductase inhibitors and androgen receptor antagonists strongly stimulate VEGF expression in dermal papilla cells.

In this study, adenosine was found to stimulate hair follicle growth in vitro by promoting growth factor expression, β-catenin activation, and downstream signaling pathways.

The document concludes that using LC-MS/MS for measuring androgens is more accurate than older methods, but it needs careful validation and standardized references to be most effective.

This study found that 3-Deoxysappanchalcone may stimulate hair growth in mice by promoting proliferation of hair follicle dermal papilla cells through WNT/β-catenin and STAT signaling modulation.

This study reported the feasibility of detecting six cell-cycle-related nuclear markers in plucked human scalp and eyebrow hair, providing valuable insights for future intervention studies.

This study provided the first proteome dataset for alopecia areata, revealing novel pathways in the disease mechanisms that may lead to new therapeutic targets.

This study found that ZP4 expression was highest among PCOS patients with regular menstrual cycles, which may be linked to mature follicle presence, but no correlation with clinical indices was observed.

This study suggests that 3,4,5-tri-O-caffeoylquinic acid activates β-catenin to enhance pigmentation in mouse hair follicles, human melanocytes, and melanoma cells during the hair cycle's growth phase.

This study found that finasteride- and dutasteride-loaded iron oxide nanoparticles improved drug penetration in the skin, suggesting they may be promising for topical alopecia therapies.

This review discusses platelet-rich plasma and microneedling for alopecia areata, reporting promising small-scale findings but no new results, and suggests further trials to determine efficacy and specific disease subtype suitability.

In this study, topical quercetin was found to stimulate hair follicle growth and promote microvascular regrowth in mice, suggesting its potential for hair regrowth strategies.

This review explores the mechanism and potential applications of wound-induced hair follicle neogenesis but reports no new clinical results, highlighting the need for further research in hair regeneration therapies.

In this study, growing human hair follicles in a defined glycosaminoglycan hydrogel ex vivo promoted cell survival, proliferation, and activation of hair growth-related signaling pathways, suggesting GAG-based hydrogels could modulate the hair follicle growth cycle.

This study found that oral administration of Laminaria japonica and Cistanche tubulosa extracts may improve hair regrowth in mice, comparable to the effects of 3% Minoxidil, potentially due to their anti-inflammatory properties.

This article reviews the psychological impact of hirsutism, particularly its prevalence among women, and provides no new clinical findings.

This review discusses the potential health benefits and applications of extra virgin olive oil as a nutritional therapeutic immune-enhancer, but reports no new clinical findings.

This article discusses melanocyte development from neural crest cells and reports no new experimental results; the authors suggest a broader range of functions for melanocytes than previously recognized.

This study found that a lipid nanoemulsion-based gel of finasteride for topical use improved hair growth and was effective against alopecia, with slow skin permeation and increased efficacy compared to a testosterone-treated group.

The researchers reported that Gambogic Amide may prevent hair greying and promote hair growth by maintaining follicle pigmentation in vitro through activation and migration of melanocytes.

This study reported that combined oral finasteride and topical 5% minoxidil treatment in men with male-pattern hair loss improved hair growth by initiating anagen in pre-existing but deficient follicles, yet the growth rates remained unchanged and did not normalize hair productivity.

This study found that epidermal stem cells in nonglabrous skin are connected to the distal end of the arrector pili muscle, which may play a role in epidermal renewal and wound healing.

This article reviews the process for diagnosing polycystic ovary syndrome and suggests how it can be applied in clinical practice but reports no new results.

This study developed a new human hair research model combining 3D spheroid dermal papilla fibroblasts with plucked anagen hair shafts, potentially improving the evaluation of hair follicle differentiation.

This study created a detailed spatial atlas of healthy human skin and basal cell carcinoma, revealing a potential hair follicle origin for basal cell carcinoma and expansion of certain mesenchymal cell populations.

In this study, the authors found that applying hypobaric pressure to the skin significantly increases the transdermal permeation of large molecules by enhancing diffusion, despite the associated skin stretching and hair follicle enlargement not fully explaining this effect.

In this study, CD4+ non-haematopoietic, skin-resident stem cell-like populations were identified in both murine and human epidermis, suggesting they may serve as potential basal cell carcinoma precursors.

This review discusses the potential use of platelet-rich plasma and microneedling for alopecia areata and reports encouraging findings, but no new clinical results; future research is needed to validate these treatments.